Alan, On Thu, 19 Apr 2007 09:20:32 +0100, Alan B. Pearce wrote: > >If the runway is very wide (ie, 50 feet? 100 feet?) and the > >photographer low to the ground (5 feet off the ground, 400 feet away) > >then the shadows would look very similar to what we see in the photo. > > At Fairford the runway is wide enough to take a B52 ... I guess that makes > it pretty wide ... Standard RAF runways dating from WWII are 46m wide (150 feet in old money). And the centreline is much wider than you'd expect - people expect it to be like the lines on roads, but they start at about two feet wide and go up from there! Cheers, Howard Winter St.Albans, England -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist